<div dir="ltr"><div>I recently built with <span style="font-family:monospace">-DLLVM_USE_SANITIZER=Address</span>, ran the LIT tests, and noticed we have at least two tests with memory bugs on main. Here are the commands I ran</div><div><br></div><div><br></div><div><span style="font-family:monospace">$ cmake -GNinja -DLLVM_ENABLE_PROJECTS="clang;" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DLLVM_ENABLE_ASSERTIONS=On -DBUILD_SHARED_LIBS=On -DLLVM_USE_SANITIZER=Address ../llvm</span></div><div><span style="font-family:monospace">$ ninja check-llvm</span></div><div><span style="font-family:monospace">...</span></div><div><span style="font-family:monospace">==2157126==ERROR: AddressSanitizer: global-buffer-overflow on address 0x7fb9f778c55f at pc 0x7fba0487419d bp 0x7ffe92a0a230 sp 0x7ffe92a099d8<br>READ of size 1 at 0x7fb9f778c55f thread T0<br>    #0 0x7fba0487419c  (/lib64/libasan.so.5+0xad19c)<br>    #1 0x7fb9e7bcc439 in llvm::StringRef::strLen(char const*) /home/ellishoag/local/repos/llvm-project/llvm/include/llvm/ADT/StringRef.h:86<br>    #2 0x7fb9e7bcc439 in llvm::StringRef::StringRef(char const*) /home/ellishoag/local/repos/llvm-project/llvm/include/llvm/ADT/StringRef.h:108<br>    #3 0x7fb9e7bcc439 in getMnemonic /home/ellishoag/local/repos/llvm-project/llvm/lib/MC/MCAsmStreamer.cpp:159</span></div><div><span style="font-family:monospace">...<br></span></div><div><span style="font-family:monospace">Failed Tests (2):<br>  LLVM :: CodeGen/AArch64/machine-outliner-remarks.ll<br>  LLVM :: CodeGen/X86/x86-shrink-wrapping.ll</span></div><div><span style="font-family:monospace"><br></span></div><div><span style="font-family:monospace"><br></span></div><div><span style="font-family:monospace"><font face="arial,sans-serif">I think check-clang also has some broken tests. Should we be running these checks in <a href="https://lab.llvm.org/buildbot/">https://lab.llvm.org/buildbot/</a> ?</font> <span style="font-family:arial,sans-serif">I'm not super familiar with this site, but it seems that we have asan builds, but that we don't run check-llvm or check-clang.</span><br></span></div></div>